Extending auger.



S. POPKY.

EXTENDING AUGBR.

APPLICATION FILED0GT.2,1909.

Patent ed Nov. 28, 1911.

$14 no n ['0 z SAMUEL POPKY, OF WILKES-BARREL PENNSYLVANIA.

EXTENDINGY-YAUGER.

Specification of Letters Patent.

Patented Nov. 28., 1911.

Application filed October 2, 1909. Serial No. 520,740.

To all whom it may concern:

, Be it known that I, SAMUEL PoPKY, a citizen of the United States,residing at v'\"'ilkes'-Barre, in the county of Luzernc and State ofPennsylvania, have invented certain new and useful Improvements inExtending Angers; and I do hereby declare the following to be a full,clear, and exact description .of the invention, such as will enableothers skilled in the art to which it tion comprises certain novelconstructions,

combinations and arrangement of parts as will be hereinafter more fullydescribed and claimed.

In the accompanying drawings: represents a side elevation showing theangle at which the extensible cutting member is positioned in relationto the bit. Fig. 2 is an edge elevation of the view shown in Fig. 1.Fig. 3 is a sectional view taken on line A-B of Fig. 2 showing themanner of connecting the bit and extensible cutter.

Referring to the drawings by numerals 2 represents a hollow auger shankhaving formed in the end thereof arectangular longitudinal taperingsocket 3 forming a continuation of the hollow shank 2 which ispreferably circular in cross section above the socket 3 with the bladesof the shank formed on the outside thereof. The shank made of castmaterial with with, and adapted to have its inner walls Figure 1 engagethe sides and back edge of the exl tensible cutter 5. Another projection6 is carriedby the shank 2 opposite the project-ion 4, the inner wallsof which are adapted to engage the sides and back of one end of the bit7. The bit 7 is provided with teeth 8 which interlock with teeth 9positioned upon the extensible cutter 5. The bit 7 vand cutter 5 areplaced together with the teethof the one engaging the teeth of theother, and then inserted insocket 3 as shown in Fig. 3, and locked inthat position by means of a suitable pin or cotter 1O engaging the notch11 formed in the edge of the bit 7 pin 10 passing through the walls ofthe shank to engage the bit and may be secured therein in any desiredway.

The extensible cutter 5 is made long enough to permit of a considerableamount of wear and grinding so that it can be adjusted'do'wnwardly onthe toothed portion of the bit 7 beyond which it extends inside of thesocket 3, the extensible cutter 5 being positioned at a slight angle tothe bit 7 and being adjustable to out different sized holes.

What I claim is In a device of the character described, an auger shankhaving a longitudinal tapering socket formed therein, a bit having atapering end corresponding to the taper of 'the socket and provided withteeth on one edge, an adjustable cutting member having an edge providedwith teeth adapted to engage the teeth of the bit, the cutter beingadapted to extend with the bit at an acute angle by being positionedupon of the bit, and means within the socket to secure the bit.

In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL 'POPKY.

cutter to the Witnesses WV. J. TREMBATH, JACOB PoPnY.

the tapered portion for securing the bit

